HELP! I've got (well my son does) a '98 XJ Sport, 4.0L, 5-speed, 115K miles. It's been at a couple of dealer's for the past 5 weeks (we've owned it 9 weeks). Here's the story.
Thanks,
Jeff
We bought the Jeep and drove it for 4 weeks (ran great). Day 28, going up hill, the Jeep refused to shift into gear. Thinking we were pretty smart to insist on a 30 day warranty we take into the original dealer (VW). They claim to have a certified Chrsyler mechanic on staff.
They evaluate and determine the transmission needs replaced. They replace it would a salvage yard pull. While it is apart I have them replace the Flywheel, Clutch Assy, & Throwout bearing with parts I provided.
They complete reassembly and determine the vehicle is surging badly. They replace the distributor with an OEM unit due to original having a lot of slop. Vehicle is still surging. Dealer 1 throws hands in air and says take it to a Jeep dealer.
I drive it home, approximately 45 miles. After starting, the Jeep RPM will continuously cycle between 600 and a 1000 RPM. When you attempt to accelerate, it will ping badly greater than 1500 RPM and then goes flat at 2000 RPM (barely revs). Temperature has no effect, it does it hot or cold.
While at home over the weekend, I do some reading and end up replacing the CPS, IAC, & TPS with Autostore parts. No change. Check fuel pressure > rock steady 49#. Check compression > all cylinders within 10#. Some water coming from exhaust? Cleaned every electrical connection and ground.
Took to Jeep Dealer, they call back and say the PCM has internal failure and replace it.
After replacement, they call and say Jeep runs better, but is still not right and are performing further troubleshooting.
My questions are: The jeep ran fine until they replaced the trans, any connections? The whole issue of replacing the distributor, could it be incorrectly indexed? But they said it was running poorly before that. Where can I (or dealer) go from here?They evaluate and determine the transmission needs replaced. They replace it would a salvage yard pull. While it is apart I have them replace the Flywheel, Clutch Assy, & Throwout bearing with parts I provided.
They complete reassembly and determine the vehicle is surging badly. They replace the distributor with an OEM unit due to original having a lot of slop. Vehicle is still surging. Dealer 1 throws hands in air and says take it to a Jeep dealer.
I drive it home, approximately 45 miles. After starting, the Jeep RPM will continuously cycle between 600 and a 1000 RPM. When you attempt to accelerate, it will ping badly greater than 1500 RPM and then goes flat at 2000 RPM (barely revs). Temperature has no effect, it does it hot or cold.
While at home over the weekend, I do some reading and end up replacing the CPS, IAC, & TPS with Autostore parts. No change. Check fuel pressure > rock steady 49#. Check compression > all cylinders within 10#. Some water coming from exhaust? Cleaned every electrical connection and ground.
Took to Jeep Dealer, they call back and say the PCM has internal failure and replace it.
After replacement, they call and say Jeep runs better, but is still not right and are performing further troubleshooting.
Thanks,
Jeff